69 citations · 297 across the 20 of their papers we have counts for
4 papers · 1 filter
Spin chains for two-qubit teleportation
Tony J. G. Apollaro, Guilherme M. A. Almeida, Salvatore Lorenzo +2
Generating high-quality multi-particle entanglement between communicating parties is the primary resource in quantum teleportation protocols. To this aim, we show that the natural…
Disorder-safe entanglement transfer through ladder qubit chains
Guilherme M. A. Almeida, Andre M. C. Souza, Francisco +3
We study an entanglement transfer protocol in a two-leg ladder spin-1/2 chain in the presence of disorder. In the regime where on-site energies and the intrachain couplings follow…
Interplay between speed and fidelity in off-resonant quantum-state transfer protocols
Guilherme M. A. Almeida
An arbitrary qubit can be transmitted through a spin chain by perturbatively coupling both communicating parties to it. Those so-called weak-coupling models rely on effective Rabi…
Noncommutative quantum Hall effect in graphene
Willien O. Santos, Guilherme M. A. Almeida, Andre M. C. Souza
We discuss the quantum Hall effect on a single-layer graphene in the framework of noncommutative (NC) phase space. We find it induces a shift in the Hall resistivity. Furthermore,…